I have several comments:
1. Please use a descriptive title. If you're trying to simplify those expressions, then a suitable title would be something like "Simplify these expressions."
2. It looks like you've posted 10 separate problems, although those ellipses make your post a bit hard to follow. That's way too many problems in one post. Don't post more than two problems in one thread.
3. It looks like these problems are part of an assignment. It is forum policy not knowingly to help with such work.
Thread closed pending further information. You can pm me if you like.